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发明名称
Frequency converter
摘要
申请公布号
US2126859(A)
申请公布日期
1938.08.16
申请号
US19360114381
申请日期
1936.12.05
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
AFFEL HERMAN A.
分类号
H02K47/20
主分类号
H02K47/20
代理机构
代理人
主权项
地址
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